Improvement in saw-handles



H. DISSTON &. J. H. VANDEGRIF'I.

SAW-HANDLE.

N0. 194,659, Patented Au 28.1877.

NITED STATES PATENT OFFICE.

HENRY DISSTON AND JOHN H. YANDEGRIFT, OF PHILADELPHIA, PENN- SYLVANIA, ASSIGNORS TO HENRY DISSTON, HAMILTON DISSTON, AND ALBERT H. DISSTON, OF SAME PLAGE.

IMPROVEMENT IN SAW-HANDLES.

Speoification forming art of Letters Patent N0. 194,659, dated August 28, 1877; applioation filed l May 2, 1876.

T0 all whom it may ooncern:

Be it known that we, HENRY DISSTON and JOHN H. VANDEGRIFT, 0f Philadelphia, Pennsylvania, have invented certain Impr0vexnents in Handles for KeyHole Saws, of Whieh the following is a specifieation:

The object of 0ur invention is the economieal consruetion of that; dass 0f key-hole saws in whieh the blade ean be so constructed as t0 project more 01' lass from the handle. In the accompanying drawing, Figure 1 is a side view 0t' our improved key-hole saw; Fig.'2, a transverse secbion on the line 1 2; Fig. 3, a rear view of the handle; and Fig. 4, an end view of the same, looking in the direction of the arrow.

The handle A is made 0f east-iron, and has a recess, V, extending from a; to y, Fig. l, for the receptzion of the blade B, which is introdnced through a slot, b, in the front; end a of .the handle, and which is confined by'a setscrew, m. After loosening this serew the blade can be pushed inward er pulled outward, and mag be secured aft1er adjustment by tightening the serew.

In using key-hole saws the outer porbion only of the blade is often made 120 operate 0n the wood, in which case lt is importanl; that; the handle should be near the point 0f aetion,

so that there may be 110 yielding of flshe blade; hence, when the 0uter portion 0f the blade 0nly has to be used, the inner portion may be thrust into the handle, as shown in Fig. 2, thereby insnring a proper rigidity 0f that portion of {alle blade which is in use.

lt will be noted that nhe blade in n0 way interferes witsh bhe convenient manipnlation 0f the handle, the latter being renessed, as shown in Fig. 2, f0r the reception 0f the blade.

If desired, openings w w may be made in t he rear ot' the handle, to lighten Ehe same.

We 110 not desire to elaim, broadly, a keyhole saw. in whieh the blade is adjustable in the handle; hat

We claim as 0ur invention- The cast-iron handle A, the recessVon 0ne side 0f the said handle, ehe sl0t; b commnnicating with Ehe said recess, and t;he set-sorew m, all constructed as sei; forth.

In testimony whereof we have signed nur names 130 this specification in the presence 0f two subscribing witnessesx HENRY DISSTON.. JOHN H. VANDEGRIFT.

Witnesses:

A. H. SHOEMAKER, Gno. GANDY. 

